I was in Warsaw Missouri and my Overdrive got stuck in 4G mode, it indicated full bars, and showed I was connected, but I was not! I was able to connect to the device by going to the Overdrive IP address home page
http://192.168.0.1 and logging in to my device. Once there click on Advanced Settings, then WAN tab, then select 3G. On the 3G tab select WAN Mode 3Gonly, then select Connect automatically. By doing this I was able to kick it into 3G mode and get connected.
Hope this helps anyone else who has experienced this problem too.
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